header{
    height: 90px;
    background-color: #151515;
    border-bottom: 1px solid #fff;
}
.main-case{
    margin-top: 90px;
}
/* 案例部分 */
.banner{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    padding: 30px;
    height: 200px;
    background-color: #151515;
}
.banner h2{
    font-weight: normal;
    font-size: 30px;
}
.banner p{
    line-height: 50px;
}
/* 银行案例 */
.main-case .heart{
    margin-top: 50px;
}
.Financial{
    margin-bottom: 20px;
}
.Financial h5{
    font-size: 18px;
    line-height: 80px;
    position: relative;
}
.Financial .h5-1::after{
    content: "/Financial Case";
    position: absolute;
    font-size: 14px;
    font-weight: normal;
    color: #aaa;
    left: 75px;
    top: 3px;
}
.Financial .h5-2::after{
    content: "/business Case";
    color: #aaa;
    position: absolute;
    font-size: 14px;
    font-weight: normal;
    left: 75px;
    top: 3px;
}
.Financial .h5-3::after{
    content: " /Government Case";
    color: #aaa;
    position: absolute;
    font-size: 14px;
    font-weight: normal;
    left: 75px;
    top: 3px;
}
.Financial .h5-4::after{
    content: " /More Partners";
    color: #aaa;
    position: absolute;
    font-size: 14px;
    font-weight: normal;
    left: 75px;
    top: 3px;
}
.Financial h5::before{
    content: "";
    width: 20px;
    height: 3px;
    background-color: skyblue;
    position: absolute;
    top: 60px;
}
.Financial-list{
    display: flex;
    justify-content: space-between;
}
.Financial-list>div{
    padding: 10px;
    width: 350px;
    height: 340px;
    display: flex;
    flex-direction: column;
}
.Financial-list>div span{
    font-size: 20px;
    padding: 15px 0;
}
.Financial-list>div p{
    font-size: 12px;
    padding-bottom: 20px;
    color: #666;
}
.Financial-list>div a{
    width: 80px;
    color: skyblue;
}
/* 更多伙伴 */
.more{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.more div{
    width: 300px;
    height: 80px;
    background-color: #fcfcfc;
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.more div img{
    width: 200px;
    height: 40px;
}
/* 回到顶部 */
.top{
    position: fixed;
    width: 100px;
    left: 50%;
    top: 50%;
    margin-left: 610px;
    display: none;
}
.back{
    display: flex;
    flex-direction: column;
    background-color: green;
    border-radius: 10px 0 0 10px;
    color: #fff;
    transition: all 1s;
    opacity: 0;
}
.back span{
    width: 100px;
    text-align: center;
    line-height: 40px;
    cursor: pointer;
}
.back span.show{
    color: #333;
}

.back-btn{
    position: absolute;
    width: 20px;
    height: 70px;
    text-align: center;
    line-height: 70px;
    background-color: green;
    border-radius: 10px 0 0 10px;
    cursor: pointer;
    left: -20px;
    top: 50%;
    color: #fff;
    transform: translate(0,-50%);
}